Determining the Biodistribution of an Imaging Tracer (68Ga-FAPi-46) in Patients With Solid Tumors or Hematologic Cancers

This study is investigating how a new imaging tracer called 68Ga-FAPI distributes throughout the body in people with various types of cancer. FAPI tracers attach to a protein found in cancer tissue and can be detected on a PET scan. The goal is to understand how well this tracer identifies tumors across different cancer types. **You may be eligible if...** - You have a suspected or confirmed diagnosis of one of many cancer types, including breast, lung, colorectal, ovarian, pancreatic, liver, bladder, brain, cervical, gastric, head and neck, blood cancers, and others - You are willing to undergo a PET scan with the imaging agent - You have provided informed consent **You may NOT be eligible if...** - You are pregnant or breastfeeding - You have severe kidney or liver impairment - You have a condition that makes PET scanning unsafe - You are unable to provide informed consent Talk to your doctor to see if this trial is right for you.